Vinogradovite
A valid IMA mineral species - grandfathered
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About Vinogradovite
Formula:
Na4Ti4(Si2O6)2[(Si,Al)4O10]O4 · (H2O,Na,K)3
Previously given as (Na,Ca,K)4Ti4AlSi6O23(OH).2H2O.
Colour:
Colourless, white, pink, pink-brown
Lustre:
Vitreous
Hardness:
4
Specific Gravity:
2.85 - 2.97
Crystal System:
Monoclinic
Name:
Named by E.I. Semenov, E.M. Bohnshtedt-Kupletskaya, V.A. Moleva, and N.N. Sludskaya in 1956 in honor of Aleksander (Alexander) Pavlovich Vinogradov (Александр Павлович Виноградов) (21 August 1895, Petretsovo, Yaroslavl Oblast, Russian Empire – 16 November 1975, Moscow, USSR), professor of geochemistry, Moscow. He was Director of the Vernadsky Institute of Geochemistry and Analytical Chemistry, USSR Academy of Sciences. Founder and head of the first national department of geochemistry (at Moscow State University). Vice-president of the USSR Academy of Sciences. Mons Vinogradov, a mountain on the near side of the moon, is also named after him, as is a large crater on Mars.
This page provides mineralogical data about Vinogradovite.
Unique Identifiers
Mindat ID:
4186
Long-form identifier:
mindat:1:1:4186:3
IMA Classification of Vinogradovite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Na4Ti4+4(Si2O6)2[(Si,Al)4O10]O4·(H2O,Na,K)3
First published:
1956
Classification of Vinogradovite
9.DB.25
9 : SILICATES (Germanates)
D : Inosilicates
B : Inosilicates with 2-periodic single chains, Si2O6; Pyroxene-related minerals
9 : SILICATES (Germanates)
D : Inosilicates
B : Inosilicates with 2-periodic single chains, Si2O6; Pyroxene-related minerals
68.1.2.1
68 : INOSILICATES Structures with Chains of More Than One Width
1 : Structures with Chains of More Than One Width
68 : INOSILICATES Structures with Chains of More Than One Width
1 : Structures with Chains of More Than One Width
16.14.2
16 : Silicates Containing Aluminum and other Metals
14 : Aluminosilicates of Ti, Zr, Sn and Pb
16 : Silicates Containing Aluminum and other Metals
14 : Aluminosilicates of Ti, Zr, Sn and Pb
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Vgd | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Vinogradovite
Vitreous
Transparency:
Transparent
Colour:
Colourless, white, pink, pink-brown
Streak:
White
Hardness:
4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
(010)
(010)
Fracture:
Irregular/Uneven
Density:
2.85 - 2.97 g/cm3 (Measured) 2.88 g/cm3 (Calculated)
Optical Data of Vinogradovite
Type:
Biaxial (-)
RI values:
nα = 1.691 - 1.745 nβ = 1.769 - 1.773 nγ = 1.773 - 1.818
2V:
Measured: 41° to 82°, Calculated: 24° to 80°
Max. Birefringence:
δ = 0.073 - 0.082
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized biaxial acute bisectrix (Bxa) interference figure
- the conoscopic view for a grain cut perpendicular to the acute bisectrix, using
this mineral's 2V. The two small white dots mark the melatopes - the points
where the two optic axes emerge - and are shown only when they fall within the
field of view. The coloured bands are isochromatics, and the dark bands are
isogyres.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Dispersion:
r > v strong
Optical Extinction:
Y = b; X ∧ a = 7°.
Pleochroism:
Weak
Comments:
Sometimes weakly pleochroic from colorless on X to brownish on Z.
Comments:
Elongation positive; the plane of the optic axis is perpendicular to (010).
Chemistry of Vinogradovite
Mindat Formula:
Na4Ti4(Si2O6)2[(Si,Al)4O10]O4 · (H2O,Na,K)3
Previously given as (Na,Ca,K)4Ti4AlSi6O23(OH).2H2O.
Previously given as (Na,Ca,K)4Ti4AlSi6O23(OH).2H2O.
Element Weights:
Common Impurities:
Fe,Nb,Mg,Ca,Ba
Crystallography of Vinogradovite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 24.50(1) Å, b = 8.662(2) Å, c = 5.211(20) Å
β = 100.13(3)°
β = 100.13(3)°
Ratio:
a:b:c = 2.828 : 1 : 0.602
Unit Cell V:
1,088.63 ų (Calculated from Unit Cell)
Morphology:
Prismatic crystals showing faces (010), (110), (410), (101), (101).
Twinning:
Uncommonly on {010}.
Comment:
Cell from Kalsbeek & Rønsbo (1992). Range observed: a = 24.38-25.01, b = 8.66-8.72, c = 5.21-5.23 Å, beta = 99.50-104.43°.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0011019 | Vinogradovite | Kalsbeek N, Ronsbo J G (1992) Refinement of the vinogradovite structure, positioning of Be and excess Na Zeitschrift fur Kristallographie 200 237-245 | ![]() | 1992 | Ilimaussaq, Southern Greenland | 0 | 295 |
| 0019786 | Vinogradovite | Rastsvetaeva R K, Andrianov V I (1984) Refined crystal structure of vinogradovite Soviet Physics Crystallography 29 403-406 | 1984 | Kola peninsula, Russia | 0 | 293 | |
| 0019946 | Vinogradovite | Rastsvetaeva R K, Simonov V I, Belov N V (1968) Crystal structure of vinogradovite Na4Ti4[Si2O6]2[Si4O10]O4*nH2O Soviet Physics Doklady 12 1090-1092 | 1968 | Kolsk peninsula, Russia | 0 | 293 | |
| 0011018 | Vinogradovite | Kalsbeek N, Ronsbo J G (1992) Refinement of the vinogradovite structure, positioning of Be and excess Na Zeitschrift fur Kristallographie 200 237-245 | ![]() | 1992 | Ilimaussaq, Southern Greenland | 0 | 110 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.21 Å | (100) |
| 3.07 Å | (100) |
| 1.614 Å | (80) |
| 2.72 Å | (70) |
| 1.558 Å | (70) |
| 1.494 Å | (70) |
| 1.434 Å | (70) |
| 2.48 Å | (60) |
| 2.56 Å | (60) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 22 : Hydration and low-? subsurface aqueous alteration (see also #23) | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Vinogradovite
General Appearance of Type Material:
Spherulites and in aggregates of fibrous crystals, less commonly in cavities as fine prismatic crystals.
Place of Conservation of Type Material:
Vernadsky Geological Museum, Moscow, 44801.
A.E. Fersman Mineralogical Museum, Moscow, Russia, 57962, vis4737, vis4739.
A.E. Fersman Mineralogical Museum, Moscow, Russia, 57962, vis4737, vis4739.
Geological Setting of Type Material:
In nepheline syenite pegmatites.
Associated Minerals at Type Locality:
Other Language Names for Vinogradovite
Dutch:Vinogradoviet
German:Vinogradovit
Russian:Виноградовит
Simplified Chinese:白钛硅钠石
Spanish:Vinogradovita
Traditional Chinese:白鈦矽鈉石
Common Associates
Associations Based on Photo Data:
| 15 photos of Vinogradovite associated with Aegirine | NaFe3+Si2O6 |
| 11 photos of Vinogradovite associated with Leucosphenite | BaNa4Ti2B2Si10O30 |
| 10 photos of Vinogradovite associated with Eudialyte | Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| 9 photos of Vinogradovite associated with Natrolite | Na2Al2Si3O10 · 2H2O |
| 5 photos of Vinogradovite associated with Catapleiite | Na2Zr(Si3O9) · 2H2O |
| 5 photos of Vinogradovite associated with Lorenzenite | Na2Ti2(Si2O6)O3 |
| 3 photos of Vinogradovite associated with Monteregianite-(Y) | (Na,K)6(Y,Ca)2Si16O38 · 10H2O |
| 3 photos of Vinogradovite associated with Albite | Na(AlSi3O8) |
| 2 photos of Vinogradovite associated with Neptunite | KNa2Li(Fe2+)2Ti2[Si4O12]2 |
| 2 photos of Vinogradovite associated with Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
Related Minerals - Strunz-mindat Grouping
| 9.DB.05 | Potassiccarpholite | K(Mn2+,Li)2Al4Si4O12(OH,F)8 |
| 9.DB.05 | Carpholite | Mn2+Al2(Si2O6)(OH)4 |
| 9.DB.05 | Vanadiocarpholite | Mn2+V3+Al(Si2O6)(OH)4 |
| 9.DB.05 | Magnesiocarpholite | MgAl2Si2O6(OH)4 |
| 9.DB.05 | Ferrocarpholite | Fe2+Al2Si2O6(OH)4 |
| 9.DB.05 | Balipholite | BaLiMg2Al3(Si2O6)2(OH)4 |
| 9.DB.10 | Lorenzenite | Na2Ti2(Si2O6)O3 |
| 9.DB.15 | Punkaruaivite | LiTi2(HSi4O12)(OH)2 · H2O |
| 9.DB.15 | Lintisite | LiNa3Ti2(Si2O6)2O2 · 2H2O |
| 9.DB.17 | Eliseevite | LiNa1.5Ti2(H1.5Si4O12)O2 · 2H2O |
| 9.DB.20 | Kukisvumite | Na6ZnTi4(Si8O24)O4 · 4H2O |
| 9.DB.20 | Manganokukisvumite | Na6MnTi4(Si8O24)O4 · 4H2O |
| 9.DB.25 | Paravinogradovite | Na1-2(Ti,Fe3+)4(Si2O6)2(AlSi3O10)(OH)4 · H2O |
| 9.DB.30 | Nchwaningite | Mn2+2(SiO3)(OH)2 · H2O |
| 9.DB.40 | Shattuckite | Cu5(Si2O6)2(OH)2 |
| 9.DB.40 | 'UM2005-31-SiO:CuH' | Cu11(SiO4)(OH)18 · 9H2O (?) |
| 9.DB.45 | Aerinite | (Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12] |
| 9.DB.50 | Capranicaite | KCaNaAl4B4Si2O18 |
Fluorescence of Vinogradovite
White to green (UV)
Other Information
Thermal Behaviour:
Most of the water is given of at 200-500 degrees.
Notes:
Before the blowpipe fuses easily (about 800 C) to a bluish-gray opaque bead.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Vinogradovite
mindat.org URL:
https://www.mindat.org/min-4186.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Vinogradovite
Reference List:
Jambor, John L., Puziewicz, Jacek (1991) New Mineral Names. American Mineralogist, 76 (9-10) 1728-1735
Localities for Vinogradovite
Showing 39 localities.
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
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The
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada